Description
The ordering lead time is around 4 weeks.
Single-Ended Output Transformers
| Primary Coil | ||||||||||
| Model | Rating | Impedance | UL tap | Norminal DC current (max DC current) |
Inductance at 20Hz |
Frequency Response (-3.0dB)Source Impedance = 0.7X |
Recommended Circuit | Price (pair) USD |
Dimension each (in cm) |
Weight (kg/pair) |
| OPT01 | 500V / 12W | 1.0K | n/a | 150mA (300mA | 4.5H | 20Hz – 100KHz | 6AS7, 12B4A | $162.00 | 6.5 x 7 x 9.5 | 3.5 |
| OPT02 | 500V / 12W | 1.5K | n/a | 120mA (240mA) | 6.5H | 25Hz – 100KHz | 2A3, 6B4G paralleled | $162.00 | 6.5 x 7 x 9.5 | 3.5 |
| OPT03 | 500V / 12W | 2.5K | n/a | 60mA (120mA) | 12.0H | 25Hz – 90KHz | 2A3, 6B4G, 300B | $178.20 | 6.5 x 7 x 9.5 | 3.5 |
| OPT04 | 500V / 12W | 3.0K | 44% | 76mA (150mA) | 14.5H | 25Hz – 90KHz | PX-25, 6V6, 6F6 | $178.20 | 6.5 x 7 x 9.5 | 3.5 |
| OPT05 | 500V / 12W | 3.5K | 44% | 70mA (140mA) | 15.5H | 25Hz – 80KHz | 6CA7, 6L6, 807, 7591 | $178.20 | 6.5 x 7 x 9.5 | 3.5 |
| OPT06 | 500V / 12W | 5.0K | n/a | 60mA (120mA) | 18.0H | 30Hz – 80KHz | 45, 71A, VT-52, 6BL7, 6BQ5, 6BX7 | $194.40 | 6.5 x 7 x 9.5 | 3.5 |
| OPT07 | 500V / 12W | 6.6K | 44% | 60mA (120mA) | 20.0H | 30Hz – 70KHz | EL-84, 6BM8, EL-34, KT-66 | $194.40 | 6.5 x 7 x 9.5 | 3.5 |
| OPT08 | 750V / 20W | 600R | n/a | 250mA (500mA) | 7.0H | 18Hz – 150KHz | 6C33C-B | $307.80 | 9.5 x 11 x 9.5 | 6 |
| OPT09 | 750V / 20W | 1.0K | n/a | 250mA (500mA) | 9.0H | 15Hz – 125KHz | 6C33C-B, 6336A | $307.80 | 9.5 x 11 x 9.5 | 6 |
| OPT10 | 750V / 20W | 1.25K | n/a | 160mA (320mA) | 12.0H | 15Hz – 150KHz | 300B Paralleled | $307.80 | 9.5 x 11 x 9.5 | 6 |
| OPT11 | 750V / 20W | 2.0K | 44% | 140mA (280mA) | 15.0H | 20Hz – 115KHz | EL-34, 6550, KT-88 Paralleled | $307.80 | 9.5 x 11 x 9.5 | 6 |
| OPT12 | 750V / 20W | 2.5K | 44% | 90mA (250mA) | 16.0H | 13Hz – 155KHz | AD1, 2A3, 300B, KT-88(T) | $307.80 | 9.5 x 11 x 9.5 | 6.5 |
| OPT13 | 750V / 20W | 3.0K | 44% | 90mA (250mA) | 18.0H | 13Hz – 155KHz | PX-25, 2A3, 300B, 6550(T) | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT14 | 750V / 20W | 3.5K | 44% | 90mA (250mA) | 20.0H | 13Hz – 145KHz | KT-90, KT99, KT-100 | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT15 | 750V / 20W | 5.0K | 44% | 90mA (250mA) | 25.0H | 20Hz – 120KHz | 6550, KT-88, 50, 572, 811, 845 | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT16 | 750V / 20W | 6.6K | 44% | 90mA (180mA) | 35.0H | 20Hz – 95KHz | EL-34, KT-66, 6L6 | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT17 | 750V / 20W | 8.0K | n/a | 80mA (160mA) | 40.0H | 25Hz – 80KHz | 801A, VT-62 | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT18 | 750V / 20W | 10.0K | n/a | 60mA (120mA) | 50.0H | 25Hz – 65KHz | 211 | $388.80 | 9.5 x 11 x 9.5 | 7 |
| OPT19 | 1000V / 30W | 1.0K | n/a | 250mA (500mA) | 13.0H | 12Hz – 100KHz | 6C33C-B, 6080 | $469.80 | 11 x 13 x 11.5 | 10 |
| OPT20 | 1000V / 30W | 1.5K | n/a | 220mA (440mA) | 15.0H | 10Hz – 100KHz | 300B Paralleled | $469.80 | 11 x 13 x 11.5 | 10 |
| OPT21 | 1000V / 30W | 2.0K | n/a | 180mA (360mA) | 18.0H | 10Hz – 100KHz | EL-34, 6550, KT-88 Paralleled | $469.80 | 11 x 13 x 11.5 | 10 |
| OPT22 | 1000V / 30W | 2.5K | n/a | 120mA (300mA) | 20.0H | 12Hz – 145KHz | 100TH, 2A3, 300B | $502.20 | 11 x 13 x 11.5 | 11 |
| OPT23 | 1000V / 30W | 3.5K | 44% | 100mA (300mA) | 23.0H | 12Hz – 145KHz | PX-25 | $502.20 | 11 x 13 x 11.5 | 11 |
| OPT24 | 1000V / 30W | 5.0K | 44% | 100mA (300mA) | 30.0H | 12Hz – 120KHz | 845 | $502.20 | 11 x 13 x 11.5 | 11 |
| OPT25 | 1000V / 30W | 6.6K | 44% | 100mA (300mA) | 35.0H | 15Hz – 85KHz | GM-70, 805 | $502.20 | 11 x 13 x 11.5 | 11 |
| OPT26 | 1000V / 30W | 10.0K | n/a | 90mA (300mA) | 60.0H | 15Hz – 60KHz | 211 | $550.80 | 11 x 13 x 11.5 | 11 |
| OPT27 | 1200V / 40W | 3.0K | n/a | 160mA (+400mA) | 35.0H | 10Hz – 100KHz | 845, GM-70 Paralleled | $712.80 | 13 x 15 x 16 | 14 |
| OPT28 | 1200V / 40W | 5.0K | n/a | 150mA (+400mA) | 45.0H | 10Hz – 85KHz | 211 Paralleled, GM-70 | $810.00 | 13 x 15 x 16 | 14 |
| OPT29 | 1200V / 40W | 10.0K | n/a | 100mA (+400mA) | 70.0H | 10Hz – 60KHz | 805, 211, 845 | $907.20 | 13 x 15 x 16 | 14 |
Single-Ended Output Transformers for 300B
| OPT03 | 500V / 12W | 2.5K | n/a | 60mA (120mA) | 12.0H | 25Hz – 90KHz | 2A3, 6B4G, 300B | $178.20 | 6.5 x 7 x 9.5 | 3.5 |
| OPT10 | 750V / 20W | 1.25K | n/a | 160mA (320mA) | 12.0H | 15Hz – 150KHz | 300B Paralleled | $307.80 | 9.5 x 11 x 9.5 | 6 |
| OPT12 | 750V / 20W | 2.5K | 44% | 90mA (250mA) | 16.0H | 13Hz – 155KHz | AD1, 2A3, 300B, KT-88(T) | $307.80 | 9.5 x 11 x 9.5 | 6.5 |
| OPT13 | 750V / 20W | 3.0K | 44% | 90mA (250mA) | 18.0H | 13Hz – 155KHz | PX-25, 2A3, 300B, 6550(T) | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT20 | 1000V / 30W | 1.5K | n/a | 220mA (440mA) | 15.0H | 10Hz – 100KHz | 300B Paralleled | $469.80 | 11 x 13 x 11.5 | 10 |
| OPT22 | 1000V / 30W | 2.5K | n/a | 120mA (300mA) | 20.0H | 12Hz – 145KHz | 100TH, 2A3, 300B | $502.20 | 11 x 13 x 11.5 | 11 |
Single-Ended Output Transformers for 2A3
| OPT02 | 500V / 12W | 1.5K | n/a | 120mA (240mA) | 6.5H | 25Hz – 100KHz | 2A3, 6B4G paralleled | $162.00 | 6.5 x 7 x 9.5 | 3.5 |
| OPT03 | 500V / 12W | 2.5K | n/a | 60mA (120mA) | 12.0H | 25Hz – 90KHz | 2A3, 6B4G, 300B | $178.20 | 6.5 x 7 x 9.5 | 3.5 |
| OPT12 | 750V / 20W | 2.5K | 44% | 90mA (250mA) | 16.0H | 13Hz – 155KHz | AD1, 2A3, 300B, KT-88(T) | $307.80 | 9.5 x 11 x 9.5 | 6.5 |
| OPT13 | 750V / 20W | 3.0K | 44% | 90mA (250mA) | 18.0H | 13Hz – 155KHz | PX-25, 2A3, 300B, 6550(T) | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT22 | 1000V / 30W | 2.5K | n/a | 120mA (300mA) | 20.0H | 12Hz – 145KHz | 100TH, 2A3, 300B | $502.20 | 11 x 13 x 11.5 | 11 |
Single-Ended Output Transformers for 45
| OPT06 | 500V / 12W | 5.0K | n/a | 60mA (120mA) | 18.0H | 30Hz – 80KHz | 45, 71A, VT-52, 6BL7, 6BQ5, 6BX7 | $194.40 | 6.5 x 7 x 9.5 | 3.5 |
Single-Ended Output Transformers for EL34
| OPT07 | 500V / 12W | 6.6K | 44% | 60mA (120mA) | 20.0H | 30Hz – 70KHz | EL-84, 6BM8, EL-34, KT-66 | $194.40 | 6.5 x 7 x 9.5 | 3.5 |
| OPT11 | 750V / 20W | 2.0K | 44% | 140mA (280mA) | 15.0H | 20Hz – 115KHz | EL-34, 6550, KT-88 Paralleled | $307.80 | 9.5 x 11 x 9.5 | 6 |
| OPT16 | 750V / 20W | 6.6K | 44% | 90mA (180mA) | 35.0H | 20Hz – 95KHz | EL-34, KT-66, 6L6 | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT21 | 1000V / 30W | 2.0K | n/a | 180mA (360mA) | 18.0H | 10Hz – 100KHz | EL-34, 6550, KT-88 Paralleled | $469.80 | 11 x 13 x 11.5 | 10 |
Single-Ended Output Transformers for 6550
| OPT11 | 750V / 20W | 2.0K | 44% | 140mA (280mA) | 15.0H | 20Hz – 115KHz | EL-34, 6550, KT-88 Paralleled | $307.80 | 9.5 x 11 x 9.5 | 6 |
| OPT13 | 750V / 20W | 3.0K | 44% | 90mA (250mA) | 18.0H | 13Hz – 155KHz | PX-25, 2A3, 300B, 6550(T) | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT15 | 750V / 20W | 5.0K | 44% | 90mA (250mA) | 25.0H | 20Hz – 120KHz | 6550, KT-88, 50, 572, 811, 845 | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT21 | 1000V / 30W | 2.0K | n/a | 180mA (360mA) | 18.0H | 10Hz – 100KHz | EL-34, 6550, KT-88 Paralleled | $469.80 | 11 x 13 x 11.5 | 10 |
Single-Ended Output Transformers for KT88
| OPT11 | 750V / 20W | 2.0K | 44% | 140mA (280mA) | 15.0H | 20Hz – 115KHz | EL-34, 6550, KT-88 Paralleled | $307.80 | 9.5 x 11 x 9.5 | 6 |
| OPT12 | 750V / 20W | 2.5K | 44% | 90mA (250mA) | 16.0H | 13Hz – 155KHz | AD1, 2A3, 300B, KT-88(T) | $307.80 | 9.5 x 11 x 9.5 | 6.5 |
| OPT15 | 750V / 20W | 5.0K | 44% | 90mA (250mA) | 25.0H | 20Hz – 120KHz | 6550, KT-88, 50, 572, 811, 845 | $324.00 | 9.5 x 11 x 9.5 | 6.5 |
| OPT21 | 1000V / 30W | 2.0K | n/a | 180mA (360mA) | 18.0H | 10Hz – 100KHz | EL-34, 6550, KT-88 Paralleled | $469.80 | 11 x 13 x 11.5 | 10 |
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